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HK: Physik der Hadronen und Kerne

HK 25: Theorie IV

HK 25.3: Talk

Tuesday, March 20, 2001, 17:15–17:30, F

Photoproduction of quasi-bound omega mesons in nuclei — •Eugenio Marco and Wolfram Weise — Physik-Department, Technische Universität München.

We propose the (γ,p) reaction as a means of producing possible quasi-bound states of ω mesons in nuclei. We use an effective Lagrangian, based on chiral SU(3) symmetry and vector meson dominance, in order to construct the ω-nuclear potential. The contribution of bound ω states is observable in the missing energy spectra of protons emitted in forward direction for several nuclei.
Work supported in part by Humboldt-Stiftung and DFG.